using blueberries....random fact - because blueberries are too expensive, most chains and supermarkets use 'fauxberries' in their muffins.
http://www.cracked.com/article_19433_the-6-most-horrifying-lies-food-industry-feeding-you.html
http://www.cracked.com/article_19433_the-6-most-horrifying-lies-food-industry-feeding-you.html
